Java tutorial
import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; public class Main { public static void main(String[] argv) throws Exception { int capacity = 10; BlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity); for (int i = 0; i < 10; i++) { queue.add(i); } // System.out.println(queue.removeFirstOccurrence(new Integer(0))); } }